Cmb: Workaround for gcc 4.7 bug

The default constructor has no noexcept specifier for gcc 4.7

Change-Id: If204c19e21bc368d755c8d6508fd490f71be6f6c
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

src/tools/codemodelbackend/ipcsource/projectpartsdonotexistexception.h

@@ -46,6 +46,12 @@ public:
 
     const char *what() const Q_DECL_NOEXCEPT override;
 
+#ifdef __GNUC__
+#  if !__GNUC_PREREQ(4,8)
+    ~ProjectPartDoNotExistException() noexcept {}
+#  endif
+#endif
+
 private:
     Utf8StringVector projectPartIds_;
     mutable Utf8String what_;

src/tools/codemodelbackend/ipcsource/translationunitdoesnotexistexception.h

@@ -45,6 +45,12 @@ public:
 
     const char *what() const Q_DECL_NOEXCEPT override;
 
+#ifdef __GNUC__
+#  if !__GNUC_PREREQ(4,8)
+    ~TranslationUnitDoesNotExistException() noexcept {}
+#  endif
+#endif
+
 private:
     FileContainer fileContainer_;
     mutable Utf8String what_;

src/tools/codemodelbackend/ipcsource/translationunitfilenotexitexception.h

@@ -46,6 +46,12 @@ public:
 
     const char *what() const Q_DECL_NOEXCEPT override;
 
+#ifdef __GNUC__
+#  if !__GNUC_PREREQ(4,8)
+    ~TranslationUnitFileNotExitsException() noexcept {}
+#  endif
+#endif
+
 private:
     Utf8String filePath_;
     mutable Utf8String what_;

src/tools/codemodelbackend/ipcsource/translationunitisnullexception.h

@@ -41,6 +41,12 @@ class TranslationUnitIsNullException : public std::exception
 {
 public:
     const char *what() const Q_DECL_NOEXCEPT override;
+
+#ifdef __GNUC__
+#  if !__GNUC_PREREQ(4,8)
+    ~TranslationUnitIsNullException() noexcept {}
+#  endif
+#endif
 };
 
 } // namespace CodeModelBackEnd

src/tools/codemodelbackend/ipcsource/translationunitparseerrorexception.h

@@ -47,6 +47,12 @@ public:
 
     const char *what() const Q_DECL_NOEXCEPT override;
 
+#ifdef __GNUC__
+#  if !__GNUC_PREREQ(4,8)
+    ~TranslationUnitParseErrorException() noexcept {}
+#  endif
+#endif
+
 private:
     Utf8String filePath_;
     Utf8String projectPartId_;