Properly verify args in string concatenation expression for interpreter

If string concatenation contains object value, then this argument
will not have explicit toString call. We must find and check toString
method manually.

#KT-54615

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosisCompilerTestFE10TestdataTestGenerated.java

@@ -20495,6 +20495,12 @@ public class DiagnosisCompilerTestFE10TestdataTestGenerated extends AbstractDiag
                     runTest("compiler/testData/diagnostics/tests/modifiers/const/stdlibConstFun.kt");
                 }
 
+                @Test
+                @TestMetadata("stringConcatenationWithObject.kt")
+                public void testStringConcatenationWithObject() throws Exception {
+                    runTest("compiler/testData/diagnostics/tests/modifiers/const/stringConcatenationWithObject.kt");
+                }
+
                 @Test
                 @TestMetadata("types.kt")
                 public void testTypes() throws Exception {