C++: Match const/volatile/signed/unsigned for FullySpecifiedType

Changing a function signature from const to non-const is not recognized as a
changed, and doesn't trigger the "Apply Function Signature Changes" quickfix.

For example:
void func(Foo &var);
void func(Foo &var) {} // Add const before Foo, quickfix is not triggered

Change-Id: I71ae41765d66df69204abd085fdfcfcb2d605f4c
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/libs/3rdparty/cplusplus/FullySpecifiedType.cpp b/src/libs/3rdparty/cplusplus/FullySpecifiedType.cpp
index f78e4e9338..82f1e63eea 100644
--- a/src/libs/3rdparty/cplusplus/FullySpecifiedType.cpp
+++ b/src/libs/3rdparty/cplusplus/FullySpecifiedType.cpp
@@ -216,5 +216,16 @@ void FullySpecifiedType::setFlags(unsigned flags)
 
 bool FullySpecifiedType::match(const FullySpecifiedType &otherTy, Matcher *matcher) const
 {
+    static const unsigned flagsMask = [](){
+        FullySpecifiedType ty;
+        ty.f._isConst = true;
+        ty.f._isVolatile = true;
+        ty.f._isSigned = true;
+        ty.f._isUnsigned = true;
+        return ty._flags;
+    }();
+
+    if ((_flags & flagsMask) != (otherTy._flags & flagsMask))
+        return false;
     return type()->match(otherTy.type(), matcher);
 }