Merge changes from topic "buildnumberfromfile"

* changes:
  Allow jar wrapper to take quoted arguments
  Add rspfile support to RuleBuilder
  Prepare droiddoc for using RuleBuilder
  Manually escape BuildNumberFromFile
  Fix android.Expand and ninja escaping
  Add RuleBuilder helper functions for built and prebuilt tools
  Add documentation to droiddoc.go module types

java/java.go

@@ -2088,14 +2088,14 @@ func (j *DexImport) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 
 		// use zip2zip to uncompress classes*.dex files
 		rule.Command().
-			Tool(ctx.Config().HostToolPath(ctx, "zip2zip")).
+			BuiltTool(ctx, "zip2zip").
 			FlagWithInput("-i ", inputJar).
 			FlagWithOutput("-o ", temporary).
 			FlagWithArg("-0 ", "'classes*.dex'")
 
 		// use zipalign to align uncompressed classes*.dex files
 		rule.Command().
-			Tool(ctx.Config().HostToolPath(ctx, "zipalign")).
+			BuiltTool(ctx, "zipalign").
 			Flag("-f").
 			Text("4").
 			Input(temporary).