Kapt: Store line information in a file doc comment, instead of annotations (KT-21936)

plugins/kapt3/kapt3-compiler/testData/converter/functions.txt

@@ -1,48 +1,30 @@
+/**
+ * @KaptMetadata
+ */
+
+import java.lang.System;
+
 @kotlin.Metadata()
-@kapt.internal.KaptMetadata()
 public final class FunctionsTest {
 
     @org.jetbrains.annotations.NotNull()
-    @kapt.internal.KaptSignature(value = "f()Lkotlin/reflect/KProperty1;")
     public final kotlin.reflect.KProperty1<java.lang.String, java.lang.Integer> f() {
         return null;
     }
 
     @org.jetbrains.annotations.NotNull()
-    @kapt.internal.KaptSignature(value = "f2()Lkotlin/jvm/functions/Function2;")
     public final kotlin.jvm.functions.Function2<java.lang.Integer, java.lang.Integer, java.lang.Boolean> f2() {
         return null;
     }
 
-    @kapt.internal.KaptSignature(value = "f3()V")
     public final void f3() {
     }
 
-    @kapt.internal.KaptSignature(value = "f4()I")
     public final int f4() {
         return 0;
     }
 
-    @kapt.internal.KaptSignature(value = "<init>()V")
     public FunctionsTest() {
         super();
     }
 }
-
-////////////////////
-
-package kapt.internal;
-
-public @interface KaptMetadata {
-
-    public java.lang.String value();
-}
-
-////////////////////
-
-package kapt.internal;
-
-public @interface KaptSignature {
-
-    public java.lang.String value();
-}