Bug 1120655 - Label various compartment iters as GCPointers, r=terrence

--HG--
extra : rebase_source : 33addf15ffb10c652245caac4dbbd6d4979dcaef

js/src/devtools/rootAnalysis/annotations.js

@@ -281,3 +281,8 @@ function isOverridableField(initialCSU, csu, field)
 
     return true;
 }
+
+function isGCPointer(typeName)
+{
+    return typeName.indexOf("CompartmentsIter") != -1;
+}

js/src/devtools/rootAnalysis/computeGCTypes.js

@@ -5,6 +5,8 @@
 loadRelativeToScript('utility.js');
 loadRelativeToScript('annotations.js');
 
+var annotatedGCPointers = [];
+
 function processCSU(csu, body)
 {
     if (!("DataField" in body))
@@ -25,6 +27,8 @@ function processCSU(csu, body)
             addNestedStructure(csu, type.Name, fieldName);
         }
     }
+    if (isGCPointer(csu))
+        annotatedGCPointers.push(csu);
 }
 
 var structureParents = {}; // Map from field => list of <parent, fieldName>
@@ -143,6 +147,9 @@ addGCType('js::ion::IonCode');
 addGCPointer('JS::Value');
 addGCPointer('jsid');
 
+for (var typeName of annotatedGCPointers)
+    addGCPointer(typeName);
+
 // AutoCheckCannotGC should also not be held live across a GC function.
 addGCPointer('JS::AutoCheckCannotGC');