Add more warnings and fix the ones reported by them.

Makefile

@@ -6,7 +6,7 @@ ifndef HAVE_RULES
 endif
 
 ifndef CXXFLAGS
-    CXXFLAGS=-Wall -Wextra -Wshadow -pedantic -Wno-long-long -Wfloat-equal -Wcast-qual -D_GLIBCXX_DEBUG -g
+    CXXFLAGS=-Wall -Wextra -Wshadow -pedantic -Wno-long-long -Wfloat-equal -Wcast-qual -Woverloaded-virtual -Wsign-promo -Wabi -Winline -Wredundant-decls -Wpacked -Wmissing-format-attribute -Wmissing-declarations -D_GLIBCXX_DEBUG -g
 endif
 
 ifeq ($(HAVE_RULES),yes)

lib/executionpath.h

@@ -126,7 +126,6 @@ public:
 };
 
 
-void checkExecutionPaths(const Token *tok, ExecutionPath *c);
 void checkExecutionPaths(const Token *tok, ExecutionPath *c);
 
 

lib/symboldatabase.cpp

@@ -1587,7 +1587,7 @@ const Variable *Scope::getVariable(const std::string &varname) const
     return NULL;
 }
 
-const Token* skipScopeIdentifiers(const Token* tok)
+inline const Token* skipScopeIdentifiers(const Token* tok)
 {
     const Token* ret = tok;
 
@@ -1601,7 +1601,7 @@ const Token* skipScopeIdentifiers(const Token* tok)
     return ret;
 }
 
-const Token* skipPointers(const Token* tok)
+inline const Token* skipPointers(const Token* tok)
 {
     const Token* ret = tok;
 

tools/dmake.cpp

@@ -223,6 +223,14 @@ int main(int argc, char **argv)
                                 "-Wno-long-long "
                                 "-Wfloat-equal "
                                 "-Wcast-qual "
+                                "-Woverloaded-virtual "
+                                "-Wsign-promo "
+                                "-Wabi "
+                                "-Winline "
+                                "-Wredundant-decls "
+                                "-Wpacked "
+                                "-Wmissing-format-attribute "
+                                "-Wmissing-declarations "
 //                                "-Wsign-conversion "
 //                                "-Wconversion "
                                 "-D_GLIBCXX_DEBUG "