Add code completion for C++ constructors wherever we see the class (or
class template) and are in a context where we can have a value.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114441 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Index/code-completion.cpp b/test/Index/code-completion.cpp
index ddbf58e..ae72280 100644
--- a/test/Index/code-completion.cpp
+++ b/test/Index/code-completion.cpp
@@ -41,7 +41,7 @@
 // CHECK-MEMBER: FieldDecl:{ResultType int}{Text X::}{TypedText member}
 // CHECK-MEMBER: FieldDecl:{ResultType float}{Text Y::}{TypedText member}
 // CHECK-MEMBER: CXXMethod:{ResultType void}{Informative Y::}{TypedText memfunc}{LeftParen (}{Optional {Placeholder int i}}{RightParen )}
-// CHECK-MEMBER: CXXConversion:{ResultType int}{TypedText operator int}{LeftParen (}{RightParen )}{Informative  const}
+// CHECK-MEMBER: CXXConversion:{TypedText operator int}{LeftParen (}{RightParen )}{Informative  const}
 // CHECK-MEMBER: CXXMethod:{ResultType Z &}{TypedText operator=}{LeftParen (}{Placeholder const Z &}{RightParen )}
 // CHECK-MEMBER: CXXMethod:{ResultType X &}{Text X::}{TypedText operator=}{LeftParen (}{Placeholder const X &}{RightParen )}
 // CHECK-MEMBER: CXXMethod:{ResultType Y &}{Text Y::}{TypedText operator=}{LeftParen (}{Placeholder const Y &}{RightParen )}
diff --git a/test/Index/complete-exprs.c b/test/Index/complete-exprs.c
index 1619696..34bae16 100644
--- a/test/Index/complete-exprs.c
+++ b/test/Index/complete-exprs.c
@@ -25,7 +25,7 @@
 }
 
 // RUN: c-index-test -code-completion-at=%s:7:9 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC1 %s
-// RUN: env CINDEXTEST_EDITING=1 c-index-test -code-completion-at=%s:7:9 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC1 %s
+// RUN: env CINDEXTEST_EDITING=1 CINDEXTEST_COMPLETION_CACHING=1 c-index-test -code-completion-at=%s:7:9 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC1 %s
 // CHECK-CC1: NotImplemented:{TypedText __PRETTY_FUNCTION__} (65)
 // CHECK-CC1: macro definition:{TypedText __VERSION__} (70)
 // CHECK-CC1: FunctionDecl:{ResultType int}{TypedText f}{LeftParen (}{Placeholder int}{RightParen )} (12) (unavailable)
@@ -34,7 +34,7 @@
 // CHECK-CC1: NotImplemented:{TypedText sizeof}{LeftParen (}{Placeholder expression-or-type}{RightParen )} (30)
 // RUN: env CINDEXTEST_EDITING=1 CINDEXTEST_COMPLETION_CACHING=1 c-index-test -code-completion-at=%s:7:9 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC1 %s
 // RUN: c-index-test -code-completion-at=%s:7:14 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC3 %s
-// RUN: env CINDEXTEST_EDITING=1 c-index-test -code-completion-at=%s:7:14 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC3 %s
+// RUN: env CINDEXTEST_EDITING=1 CINDEXTEST_COMPLETION_CACHING=1 c-index-test -code-completion-at=%s:7:14 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC3 %s
 // CHECK-CC3: macro definition:{TypedText __VERSION__} (70)
 // CHECK-CC3: FunctionDecl:{ResultType int}{TypedText f}{LeftParen (}{Placeholder int}{RightParen )} (50)
 // CHECK-CC3-NOT: NotImplemented:{TypedText float}
@@ -59,7 +59,7 @@
 // CHECK-CC6: NotImplemented:{TypedText volatile} (50)
 
 // RUN: c-index-test -code-completion-at=%s:24:4 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC7 %s
-// RUN: env CINDEXTEST_EDITING=1 c-index-test -code-completion-at=%s:24:4 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC7 %s
+// RUN: env CINDEXTEST_EDITING=1 CINDEXTEST_COMPLETION_CACHING=1 c-index-test -code-completion-at=%s:24:4 -Xclang -code-completion-patterns %s | FileCheck -check-prefix=CHECK-CC7 %s
 // CHECK-CC7: ParmDecl:{ResultType float}{TypedText f} (8)
 // CHECK-CC7: VarDecl:{ResultType struct X}{TypedText f1} (50) (deprecated)
 // CHECK-CC7: FunctionDecl:{ResultType void}{TypedText f2}{LeftParen (}{RightParen )} (50)
diff --git a/test/Index/complete-exprs.cpp b/test/Index/complete-exprs.cpp
new file mode 100644
index 0000000..1c99e7e
--- /dev/null
+++ b/test/Index/complete-exprs.cpp
@@ -0,0 +1,37 @@
+// Line- and column-sensitive test; run lines follow.
+
+class string {
+ public:
+  string();
+  string(const char *);
+  string(const char *, int n);
+};
+
+template<typename T>
+class vector {
+public:
+  vector(const T &, unsigned n);
+
+  template<typename InputIterator>
+  vector(InputIterator first, InputIterator last);
+};
+
+void f() {
+  
+}
+
+// RUN: c-index-test -code-completion-at=%s:20:2 %s | FileCheck -check-prefix=CHECK-CC1 %s
+// RUN: env CINDEXTEST_EDITING=1 CINDEXTEST_COMPLETION_CACHING=1 c-index-test -code-completion-at=%s:20:2 %s | FileCheck -check-prefix=CHECK-CC1 %s
+// CHECK-CC1: ClassDecl:{TypedText string} (50)
+// CHECK-CC1: CXXConstructor:{TypedText string}{LeftParen (}{RightParen )} (50)
+// CHECK-CC1: CXXConstructor:{TypedText string}{LeftParen (}{Placeholder const char *}{RightParen )} (50)
+// CHECK-CC1: CXXConstructor:{TypedText string}{LeftParen (}{Placeholder const char *}{Comma , }{Placeholder int n}{RightParen )} (50)
+// CHECK-CC1: ClassTemplate:{TypedText vector}{LeftAngle <}{Placeholder typename T}{RightAngle >} (50)
+// CHECK-CC1: CXXConstructor:{TypedText vector}{LeftAngle <}{Placeholder typename T}{RightAngle >}{LeftParen (}{Placeholder T const &}{Comma , }{Placeholder unsigned int n}{RightParen )} (50)
+// CHECK-CC1: FunctionTemplate:{ResultType void}{TypedText vector}{LeftAngle <}{Placeholder typename T}{RightAngle >}{LeftParen (}{Placeholder InputIterator first}{Comma , }{Placeholder InputIterator last}{RightParen )} (50)
+
+// RUN: c-index-test -code-completion-at=%s:19:1 %s | FileCheck -check-prefix=CHECK-CC2 %s
+// RUN: env CINDEXTEST_EDITING=1 CINDEXTEST_COMPLETION_CACHING=1 c-index-test -code-completion-at=%s:19:1 %s | FileCheck -check-prefix=CHECK-CC2 %s
+// CHECK-CC2: ClassDecl:{TypedText string} (50)
+// CHECK-CC2-NOT: CXXConstructor
+// CHECK-CC2: ClassTemplate:{TypedText vector}{LeftAngle <}{Placeholder typename T}{RightAngle >} (50)