G1: Use SoftMaxHeapSize to guide GC heuristics

@@ -138,11 +138,11 @@
         // Misc Top-level
         new LogMessageWithLevel("Code Roots Purge", Level.DEBUG),
         new LogMessageWithLevel("String Deduplication", Level.DEBUG),
         new LogMessageWithLevel("Queue Fixup", Level.DEBUG),
         new LogMessageWithLevel("Table Fixup", Level.DEBUG),
-        new LogMessageWithLevel("Expand Heap After Collection", Level.DEBUG),
+        new LogMessageWithLevel("Resize Heap After Collection", Level.DEBUG),
         new LogMessageWithLevel("Region Register", Level.DEBUG),
         new LogMessageWithLevel("Prepare Heap Roots", Level.DEBUG),
         // Free CSet
         new LogMessageWithLevel("Free Collection Set", Level.DEBUG),
         new LogMessageWithLevel("Serial Free Collection Set", Level.TRACE),