Better loplugin:unnecessaryparen check for vexing parse

Change-Id: Id7b09a8556da25b81c056d5811ba721e781682d6
Reviewed-on: https://gerrit.libreoffice.org/68025
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

compilerplugins/clang/unnecessaryparen.cxx

@@ -447,8 +447,9 @@ bool UnnecessaryParen::VisitVarDecl(const VarDecl* varDecl)
         return true;
 
     // these two are for "parentheses were disambiguated as a function declaration [-Werror,-Wvexing-parse]"
-    if (isa<CXXBindTemporaryExpr>(sub)
-        || isa<CXXFunctionalCastExpr>(sub))
+    auto const sub2 = sub->IgnoreImplicit();
+    if (isa<CXXTemporaryObjectExpr>(sub2)
+        || isa<CXXFunctionalCastExpr>(sub2))
         return true;
 
     report(

extensions/source/propctrlr/propertycomposer.cxx

@@ -160,7 +160,7 @@ namespace pcr
 
         // loop through the secondary sets
         PropertyState eSecondaryState = PropertyState_DIRECT_VALUE;
-        for ( HandlerArray::const_iterator loop = ( m_aSlaveHandlers.begin() + 1 );
+        for ( HandlerArray::const_iterator loop = m_aSlaveHandlers.begin() + 1;
               loop != m_aSlaveHandlers.end();
               ++loop
             )
@@ -210,7 +210,7 @@ namespace pcr
             putIntoBag( (*m_aSlaveHandlers.begin())->getSupportedProperties(), m_aSupportedProperties );
 
             // now intersect with the properties of *all* other handlers
-            for ( HandlerArray::const_iterator loop = ( m_aSlaveHandlers.begin() + 1 );
+            for ( HandlerArray::const_iterator loop = m_aSlaveHandlers.begin() + 1;
                 loop != m_aSlaveHandlers.end();
                 ++loop
                 )