refactor: better naming for baseCompile argument

packages/compiler-core/src/compile.ts

@@ -59,7 +59,7 @@ export function getBaseTransformPreset(
 // we name it `baseCompile` so that higher order compilers like
 // @vue/compiler-dom can export `compile` while re-exporting everything else.
 export function baseCompile(
-  template: string | RootNode,
+  source: string | RootNode,
   options: CompilerOptions = {}
 ): CodegenResult {
   const onError = options.onError || defaultOnError
@@ -82,7 +82,7 @@ export function baseCompile(
     onError(createCompilerError(ErrorCodes.X_SCOPE_ID_NOT_SUPPORTED))
   }
 
-  const ast = isString(template) ? baseParse(template, options) : template
+  const ast = isString(source) ? baseParse(source, options) : source
   const [nodeTransforms, directiveTransforms] =
     getBaseTransformPreset(prefixIdentifiers)