[tools] Rename SourceMap.mjs to sourcemap.mjs

Bug: v8:10667, v8:10933
Change-Id: I06ebcdf12ee5acbd56ef3741af2b592b5d0351a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2435209
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70166}

tools/dumpcpp-driver.mjs

@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import "./sourcemap.mjs";
+import { WebInspector } from "./sourcemap.mjs";
 import {
-    CppProcessor, ArgumentsProcessor, UnixCppEntriesProvider, 
+    CppProcessor, ArgumentsProcessor, UnixCppEntriesProvider,
     WindowsCppEntriesProvider, MacCppEntriesProvider
   } from  "./dumpcpp.mjs";
 

tools/ic-processor-driver.mjs

@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 import { IcProcessor, ArgumentsProcessor, readFile } from "./ic-processor.mjs";
-import "./SourceMap.mjs";
+import { WebInspector } from "./sourcemap.mjs";
 
 function processArguments(args) {
   var processor = new ArgumentsProcessor(args);

tools/map-processor-driver.mjs

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import "./SourceMap.mjs";
+import { WebInspector } from "./sourcemap.mjs";
 import {
     MapProcessor, ArgumentsProcessor, readFile
   } from "./map-processor.mjs";

tools/parse-processor-driver.mjs

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import { WebInspector } from "./SourceMap.mjs";
+import { WebInspector } from "./sourcemap.mjs";
 import {
     ParseProcessor, ArgumentsProcessor, readFile,
   } from "./parse-processor.mjs";