Fix implicit conversions, rename reserved works, enable -Wc++-compat.

Change-Id: I06292964a6882ea2d0c17c5c962db95e46b01543
diff --git a/vm/compiler/Compiler.c b/vm/compiler/Compiler.c
index 1ac6e97..8dd8adc 100644
--- a/vm/compiler/Compiler.c
+++ b/vm/compiler/Compiler.c
@@ -209,7 +209,7 @@
         saveArea = SAVEAREA_FROM_FP(fp);
 
         if (print) {
-            if (dvmIsBreakFrame(fp)) {
+            if (dvmIsBreakFrame((u4*)fp)) {
                 LOGD("  #%d: break frame (%p)",
                      stackLevel, saveArea->returnAddr);
             }