DevTools: support resolving a UILocation to multiple raw script locations

third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js

Index: third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js b/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
index 4b60589d1d41edc8d496f5c1cf408df0f84a678b..73fd566f4fd19d21d86fba14d3e47289296c8f42 100644
--- a/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
+++ b/third_party/WebKit/Source/devtools/front_end/sources/SourceFormatter.js
@@ -155,17 +155,18 @@ Sources.SourceFormatter.ScriptMapping = class {
    * @param {!Workspace.UISourceCode} uiSourceCode
    * @param {number} lineNumber
    * @param {number} columnNumber
-   * @return {?SDK.DebuggerModel.Location}
+   * @return {!Array<!SDK.DebuggerModel.Location>}
    */
-  uiLocationToRawLocation(uiSourceCode, lineNumber, columnNumber) {
+  uiLocationToRawLocations(uiSourceCode, lineNumber, columnNumber) {
     var formatData = Sources.SourceFormatData._for(uiSourceCode);
     if (!formatData)
-      return null;
+      return [];
     var originalLocation = formatData.mapping.formattedToOriginal(lineNumber, columnNumber);
     var scripts = this._scriptsForUISourceCode(formatData.originalSourceCode);
     if (!scripts.length)
-      return null;
-    return scripts[0].debuggerModel.createRawLocation(scripts[0], originalLocation[0], originalLocation[1]);
+      return [];
+    var location = scripts[0].debuggerModel.createRawLocation(scripts[0], originalLocation[0], originalLocation[1]);
+    return location ? [location] : [];
   }
 
   /**
@@ -225,9 +226,8 @@ Sources.SourceFormatter.ScriptMapping = class {
       }
     }
     if (uiSourceCode.contentType().isScript()) {
-      var rawLocation = Bindings.debuggerWorkspaceBinding.uiLocationToRawLocation(uiSourceCode, 0, 0);
-      if (rawLocation)
-        return [rawLocation.script()];
+      return Bindings.debuggerWorkspaceBinding.uiLocationToRawLocations(uiSourceCode, 0, 0)
+          .map(location => location.script());
     }
     return [];
   }