ASTImporter: add forgotten tests for rL292776

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@292778 91177308-0d34-0410-b5e6-96231b3b80d8

test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec1.cpp

@@ -0,0 +1,118 @@
+template<typename T, class P>
+struct TwoOptionTemplate {};
+
+template<typename T>
+struct TwoOptionTemplate<T, char> {
+  int member;
+};
+
+
+template<typename T>
+struct TwoOptionTemplate<T, double> {
+  float member;
+};
+
+template<typename T>
+struct TwoOptionTemplate<T, T> {
+  T** member;
+};
+
+TwoOptionTemplate<int, char> X0;
+TwoOptionTemplate<int, float> X1;
+TwoOptionTemplate<void *, wchar_t> X2;
+TwoOptionTemplate<long, long> X3;
+TwoOptionTemplate<float, float> X4;
+TwoOptionTemplate<long, long> SingleSource;
+TwoOptionTemplate<char, double> SecondDoubleSource;
+
+
+template<int I, class C>
+struct IntTemplateSpec {};
+
+template<class C>
+struct IntTemplateSpec<4, C> {
+  C member;
+};
+
+template<int I>
+struct IntTemplateSpec<I, void *> {
+  int member;
+  static constexpr int val = I;
+};
+
+template<int I>
+struct IntTemplateSpec<I, double> {
+  char member;
+  static constexpr int val = I;
+};
+
+IntTemplateSpec<4, wchar_t> Y0;
+IntTemplateSpec<5, void *> Y1;
+IntTemplateSpec<1, long> Y2;
+IntTemplateSpec<3, int> Y3;
+//template<int I> constexpr int IntTemplateSpec<I, double>::val;
+IntTemplateSpec<42, double> NumberSource;
+static_assert(NumberSource.val == 42);
+
+namespace One {
+namespace Two {
+  // Just an empty namespace to ensure we can deal with multiple namespace decls.
+}
+}
+
+
+namespace One {
+namespace Two {
+namespace Three {
+
+template<class T>
+class Parent {};
+
+} // namespace Three
+
+} // namespace Two
+
+template<typename T, typename X>
+struct Child1: public Two::Three::Parent<unsigned> {
+  char member;
+};
+
+template<class T>
+struct Child1<T, One::Two::Three::Parent<T>> {
+  T member;
+};
+
+} // namespace One
+
+One::Child1<int, double> Z0Source;
+
+// Test import of nested namespace specifiers
+template<typename T>
+struct Outer {
+  template<typename U> class Inner0;
+};
+
+template<typename X>
+template<typename Y>
+class Outer<X>::Inner0 {
+public:
+  void f(X, Y);
+  template<typename Z> struct Inner1;
+};
+
+template<typename X>
+template<typename Y>
+void Outer<X>::Inner0<Y>::f(X, Y) {}
+
+template<typename X>
+template<typename Y>
+template<typename Z>
+class Outer<X>::Inner0<Y>::Inner1 {
+public:
+  void f(Y, Z);
+};
+
+template<typename X>
+template<typename Y>
+template<typename Z>
+void Outer<X>::Inner0<Y>::Inner1<Z>::f(Y, Z) {}

test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec2.cpp

@@ -0,0 +1,79 @@
+template<typename T, typename P>
+struct TwoOptionTemplate {};
+
+template<typename T>
+struct TwoOptionTemplate<T, char> {
+  int member;
+};
+
+
+template<typename T>
+struct TwoOptionTemplate<T, double> {
+  float member;
+};
+
+template<typename T>
+struct TwoOptionTemplate<T, T> {
+  T** member;
+};
+
+TwoOptionTemplate<int, char> X0;
+TwoOptionTemplate<int, double> X1;
+TwoOptionTemplate<void *, wchar_t> X2;
+TwoOptionTemplate<long, long> X3;
+TwoOptionTemplate<int, int> X4;
+TwoOptionTemplate<long, long> SingleDest;
+TwoOptionTemplate<int, double> SecondDoubleDest;
+
+
+template<int I, class C>
+struct IntTemplateSpec {};
+
+template<class C>
+struct IntTemplateSpec<4, C> {
+  C member;
+};
+
+template<int I>
+struct IntTemplateSpec<I, void *> {
+  double member;
+  static constexpr int val = I;
+};
+
+template<int I>
+struct IntTemplateSpec<I, double> {
+  char member;
+  static constexpr int val = I;
+};
+
+IntTemplateSpec<4, wchar_t>Y0;
+IntTemplateSpec<5, void *> Y1;
+IntTemplateSpec<1, int> Y2;
+IntTemplateSpec<2, int> Y3;
+IntTemplateSpec<43, double> NumberDest;
+
+namespace One {
+namespace Two {
+namespace Three {
+
+template<class T>
+class Parent {};
+
+} // namespace Three
+
+} // namespace Two
+
+template<typename T, typename X>
+struct Child1: public Two::Three::Parent<unsigned> {
+  char member;
+};
+
+template<class T>
+struct Child1<T, One::Two::Three::Parent<T>> {
+  T member;
+};
+
+} // namespace One
+
+namespace Dst { One::Child1<double, One::Two::Three::Parent<double>> Z0Dst; }
+One::Child1<int, float> Z1;

test/ASTMerge/class-template-partial-spec/test.cpp

@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -emit-pch -std=c++1z -o %t.1.ast %S/Inputs/class-template-partial-spec1.cpp
+// RUN: %clang_cc1 -emit-pch -std=c++1z -o %t.2.ast %S/Inputs/class-template-partial-spec2.cpp
+// RUN: not %clang_cc1 -std=c++1z -ast-merge %t.1.ast -ast-merge %t.2.ast -fsyntax-only %s 2>&1 | FileCheck %s
+
+static_assert(sizeof(**SingleSource.member) == sizeof(**SingleDest.member));
+static_assert(sizeof(SecondDoubleSource.member) == sizeof(SecondDoubleDest.member));
+static_assert(NumberSource.val == 42);
+static_assert(sizeof(Z0Source.member) == sizeof(char));
+static_assert(sizeof(Dst::Z0Dst.member) == sizeof(double));
+static_assert(sizeof(One::Child1<double, One::Two::Three::Parent<double>>::member) == sizeof(double));
+
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec2.cpp:21:32: error: external variable 'X1' declared with incompatible types in different translation units ('TwoOptionTemplate<int, double>' vs. 'TwoOptionTemplate<int, float>')
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec1.cpp:21:31: note: declared here with type 'TwoOptionTemplate<int, float>'
+
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec2.cpp:24:29: error: external variable 'X4' declared with incompatible types in different translation units ('TwoOptionTemplate<int, int>' vs. 'TwoOptionTemplate<float, float>')
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec1.cpp:24:33: note: declared here with type 'TwoOptionTemplate<float, float>'
+
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec1.cpp:38:8: warning: type 'IntTemplateSpec<5, void *>' has incompatible definitions in different translation units
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec1.cpp:39:7: note: field 'member' has type 'int' here
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec2.cpp:39:10: note: field 'member' has type 'double' here
+
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec2.cpp:52:25: error: external variable 'Y3' declared with incompatible types in different translation units ('IntTemplateSpec<2, int>' vs. 'IntTemplateSpec<3, int>')
+// CHECK: llvm/tools/clang/test/ASTMerge/class-template-partial-spec/Inputs/class-template-partial-spec1.cpp:52:25: note: declared here with type 'IntTemplateSpec<3, int>'
+
+// CHECK-NOT: static_assert