K2/tests: add a similar to containsAndOverload test about charAt / get

Related to KT-64846

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosticCompilerTestFE10TestdataTestGenerated.java

@@ -22519,6 +22519,12 @@ public class DiagnosticCompilerTestFE10TestdataTestGenerated extends AbstractDia
                     KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/tests/j+k/collectionOverrides"), Pattern.compile("^(.+)\\.(kt|kts)$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
                 }
 
+                @Test
+                @TestMetadata("charAtAndOverload.kt")
+                public void testCharAtAndOverload() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.kt");
+                }
+
                 @Test
                 @TestMetadata("charBuffer.kt")
                 public void testCharBuffer() throws Exception {

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated.java

@@ -22519,6 +22519,12 @@ public class LLFirPreresolvedReversedDiagnosticCompilerFE10TestDataTestGenerated
                     KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/tests/j+k/collectionOverrides"), Pattern.compile("^(.+)\\.(kt|kts)$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
                 }
 
+                @Test
+                @TestMetadata("charAtAndOverload.kt")
+                public void testCharAtAndOverload() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.kt");
+                }
+
                 @Test
                 @TestMetadata("charBuffer.kt")
                 public void testCharBuffer() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirLightTreeOldFrontendDiagnosticsTestGenerated.java

@@ -22513,6 +22513,12 @@ public class FirLightTreeOldFrontendDiagnosticsTestGenerated extends AbstractFir
                     KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/tests/j+k/collectionOverrides"), Pattern.compile("^(.+)\\.kt$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true, "multiplatform");
                 }
 
+                @Test
+                @TestMetadata("charAtAndOverload.kt")
+                public void testCharAtAndOverload() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.kt");
+                }
+
                 @Test
                 @TestMetadata("charBuffer.kt")
                 public void testCharBuffer() throws Exception {

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirPsiOldFrontendDiagnosticsTestGenerated.java

@@ -22519,6 +22519,12 @@ public class FirPsiOldFrontendDiagnosticsTestGenerated extends AbstractFirPsiDia
                     KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/tests/j+k/collectionOverrides"), Pattern.compile("^(.*)\\.kts?$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true, "multiplatform");
                 }
 
+                @Test
+                @TestMetadata("charAtAndOverload.kt")
+                public void testCharAtAndOverload() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.kt");
+                }
+
                 @Test
                 @TestMetadata("charBuffer.kt")
                 public void testCharBuffer() throws Exception {

compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.fir.kt

@@ -0,0 +1,26 @@
+// SCOPE_DUMP: KA:get
+
+// FILE: A.java
+abstract public class A implements CharSequence {
+    public final int length() {
+        return 0;
+    }
+
+    public char charAt(int index) {
+        return ' ';
+    }
+
+    public char get(int index) {
+        return 'X';
+    }
+}
+
+// FILE: main.kt
+abstract class KA : A() {
+    override fun get(index: Int) = 'O'
+}
+
+fun foo(a: A, ka: KA) {
+    a.get(0)
+    ka.<!UNRESOLVED_REFERENCE!>get<!>(0)
+}

compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.fir.overrides.txt

@@ -0,0 +1,6 @@
+KA:
+  [Source]: public open override operator fun get(index: R|kotlin/Int|): R|kotlin/Char| from Use site scope of /KA [id: 0]
+    [Enhancement]: public open operator fun get(index: R|kotlin/Int|): R|kotlin/Char| from Java enhancement scope for /A [id: 1]
+    [Enhancement]: /* hidden due to clash */ public open operator fun get(index: R|kotlin/Int|): R|kotlin/Char| from Java enhancement scope for /A [id: 2]
+      [Library]: public abstract operator fun get(index: R|kotlin/Int|): R|kotlin/Char| from Use site scope of kotlin/CharSequence [id: 3]
+

compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.kt

@@ -0,0 +1,26 @@
+// SCOPE_DUMP: KA:get
+
+// FILE: A.java
+abstract public class A implements CharSequence {
+    public final int length() {
+        return 0;
+    }
+
+    public char charAt(int index) {
+        return ' ';
+    }
+
+    public char get(int index) {
+        return 'X';
+    }
+}
+
+// FILE: main.kt
+abstract class <!CONFLICTING_JVM_DECLARATIONS!>KA<!> : A() {
+    <!CONFLICTING_JVM_DECLARATIONS!>override fun get(index: Int)<!> = 'O'
+}
+
+fun foo(a: A, ka: KA) {
+    a.get(0)
+    ka.get(0)
+}

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/DiagnosticTestGenerated.java

@@ -22519,6 +22519,12 @@ public class DiagnosticTestGenerated extends AbstractDiagnosticTest {
                     KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/diagnostics/tests/j+k/collectionOverrides"), Pattern.compile("^(.*)\\.kts?$"), Pattern.compile("^(.+)\\.(reversed|fir|ll)\\.kts?$"), true);
                 }
 
+                @Test
+                @TestMetadata("charAtAndOverload.kt")
+                public void testCharAtAndOverload() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/j+k/collectionOverrides/charAtAndOverload.kt");
+                }
+
                 @Test
                 @TestMetadata("charBuffer.kt")
                 public void testCharBuffer() throws Exception {