DevTools: support resolving a UILocation to multiple raw script locations

third_party/WebKit/Source/devtools/front_end/bindings/BreakpointManager.js

Index: third_party/WebKit/Source/devtools/front_end/bindings/BreakpointManager.js
diff --git a/third_party/WebKit/Source/devtools/front_end/bindings/BreakpointManager.js b/third_party/WebKit/Source/devtools/front_end/bindings/BreakpointManager.js
index 88df8c07de7cbb1c99df450002bbcead19cc7d72..7291aebf9f8a3d2a0de31c7a92a3bfec58b1a683 100644
--- a/third_party/WebKit/Source/devtools/front_end/bindings/BreakpointManager.js
+++ b/third_party/WebKit/Source/devtools/front_end/bindings/BreakpointManager.js
@@ -266,10 +266,10 @@ Bindings.BreakpointManager = class extends Common.Object {
    * @return {!Promise<!Array<!Workspace.UILocation>>}
    */
   possibleBreakpoints(uiSourceCode, textRange) {
-    var startLocation = Bindings.debuggerWorkspaceBinding.uiLocationToRawLocation(
-        uiSourceCode, textRange.startLine, textRange.startColumn);
-    var endLocation =
-        Bindings.debuggerWorkspaceBinding.uiLocationToRawLocation(uiSourceCode, textRange.endLine, textRange.endColumn);
+    var startLocation = Bindings.debuggerWorkspaceBinding.uiLocationToRawLocations(
+        uiSourceCode, textRange.startLine, textRange.startColumn)[0];

[dgozman, 2017/05/02 19:47:41]

This is suspicious. What if there are multiple and the order is different? We
will fail check in line 273.

+    var endLocation = Bindings.debuggerWorkspaceBinding.uiLocationToRawLocations(
+        uiSourceCode, textRange.endLine, textRange.endColumn)[0];
     if (!startLocation || !endLocation || startLocation.debuggerModel !== endLocation.debuggerModel)
       return Promise.resolve([]);
 
@@ -809,7 +809,7 @@ Bindings.BreakpointManager.ModelBreakpoint = class {
     var condition = this._breakpoint.condition();
 
     var debuggerLocation = uiSourceCode &&
-        Bindings.debuggerWorkspaceBinding.uiLocationToRawLocation(uiSourceCode, lineNumber, columnNumber);
+        Bindings.debuggerWorkspaceBinding.uiLocationToRawLocations(uiSourceCode, lineNumber, columnNumber)[0];
     var newState;
     if (this._breakpoint._isRemoved || !this._breakpoint.enabled() || this._scriptDiverged()) {
       newState = null;