Minor. Move @JvmRecord tests to relevant directory

^KT-43677 In Progress

compiler/testData/diagnostics/testsWithJava15/jvmRecord/simpleRecords.kt

@@ -0,0 +1,16 @@
+// FILE: MyRecord.java
+public record MyRecord(int x, CharSequence y) {
+
+}
+
+// FILE: main.kt
+
+fun foo(mr: MyRecord) {
+    MyRecord(1, "")
+
+    mr.x()
+    mr.y()
+
+    mr.x
+    mr.y
+}

compiler/testData/diagnostics/testsWithJava15/jvmRecord/simpleRecords.txt

@@ -0,0 +1,12 @@
+package
+
+public fun foo(/*0*/ mr: MyRecord): kotlin.Unit
+
+/*record*/ public final class MyRecord : java.lang.Record {
+    public constructor MyRecord(/*0*/ x: kotlin.Int, /*1*/ y: kotlin.CharSequence!)
+    public abstract override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public abstract override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public abstract override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+    /*record component*/ public open fun x(): kotlin.Int
+    /*record component*/ public open fun y(): kotlin.CharSequence!
+}