-indent should take precedence over -source 3.0-migrate

Author: liufengyun

compiler/src/dotty/tools/dotc/parsing/Scanners.scala

@@ -195,8 +195,10 @@ object Scanners {
     val rewriteNoIndent = ctx.settings.noindent.value && rewrite
 
     val noindentSyntax =
-      ctx.settings.noindent.value
-      || ctx.settings.oldSyntax.value
+      !ctx.settings.indent.value
+      && (ctx.settings.noindent.value
+          || ctx.settings.oldSyntax.value
+          || migrateTo3)
     val indentSyntax =
       ((if (Config.defaultIndent) !noindentSyntax else ctx.settings.indent.value)
        || rewriteNoIndent)

compiler/test/dotty/tools/dotc/CompilationTests.scala

@@ -72,7 +72,7 @@ class CompilationTests extends ParallelTesting {
 
     aggregateTests(
       compileFile("tests/rewrites/rewrites.scala", scala2CompatMode.and("-rewrite", "-indent")),
-      compileFile("tests/rewrites/i8982.scala", defaultOptions.and("-indent").and("-rewrite"))
+      compileFile("tests/rewrites/i8982.scala", defaultOptions.and("-indent", "-rewrite"))
     ).checkRewrites()
   }