[Analysis API FIR] fix NPE of == call resolve without builtins

We should not expect builtins to be always available as they are taken from indecies.

For K1　and FIR Standalone implementations, the builtins are always available.

^KT-62957 fixed

analysis/analysis-api-fe10/tests-gen/org/jetbrains/kotlin/analysis/api/fe10/test/cases/generated/cases/components/callResolver/Fe10IdeNormalAnalysisSourceModuleResolveCallTestGenerated.java

@@ -664,6 +664,12 @@ public class Fe10IdeNormalAnalysisSourceModuleResolveCallTestGenerated extends A
         runTest("analysis/analysis-api/testData/components/callResolver/resolveCall/memberFunctionCallWithTypeArgument.kt");
     }
 
+    @Test
+    @TestMetadata("noBuiltIns.kt")
+    public void testNoBuiltIns() throws Exception {
+        runTest("analysis/analysis-api/testData/components/callResolver/resolveCall/noBuiltIns.kt");
+    }
+
     @Test
     @TestMetadata("postfixUnaryOperatorOnVar.kt")
     public void testPostfixUnaryOperatorOnVar() throws Exception {

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirCallResolver.kt

@@ -79,14 +79,15 @@ internal class KtFirCallResolver(
     override val analysisSession: KtFirAnalysisSession,
     override val token: KtLifetimeToken,
 ) : AbstractKtCallResolver(), KtFirAnalysisSessionComponent {
-    private val equalsSymbolInAny: FirNamedFunctionSymbol by lazy(LazyThreadSafetyMode.PUBLICATION) {
+    private val equalsSymbolInAny: FirNamedFunctionSymbol? by lazy(LazyThreadSafetyMode.PUBLICATION) {
         val session = analysisSession.useSiteSession
+        val anyFirClass = session.builtinTypes.anyType.toRegularClassSymbol(session) ?: return@lazy null
         val scope = session.declaredMemberScope(
-            session.builtinTypes.anyType.toRegularClassSymbol(session)!!,
+            anyFirClass,
             memberRequiredPhase = FirResolvePhase.STATUS,
         )
 
-        lateinit var result: FirNamedFunctionSymbol
+        var result: FirNamedFunctionSymbol? = null
         scope.processFunctionsByName(EQUALS) {
             result = it
         }
@@ -1217,13 +1218,12 @@ internal class KtFirCallResolver(
         val rightPsi = binaryExpression.right ?: return null
         return when (operation) {
             FirOperation.EQ, FirOperation.NOT_EQ -> {
-                val equalsSymbolInAny = equalsSymbolInAny
                 val leftOperand = arguments.firstOrNull() ?: return null
                 val session = analysisSession.useSiteSession
                 val leftOperandType = leftOperand.resolvedType
 
                 val classSymbol = leftOperandType.fullyExpandedType(session).toSymbol(session) as? FirClassSymbol<*>
-                val equalsSymbol = classSymbol?.getEqualsSymbol(equalsSymbolInAny) ?: equalsSymbolInAny
+                val equalsSymbol = classSymbol?.getEqualsSymbol() ?: equalsSymbolInAny ?: return null
                 val ktSignature = equalsSymbol.toKtSignature()
                 KtSuccessCallInfo(
                     KtSimpleFunctionCall(
@@ -1244,7 +1244,7 @@ internal class KtFirCallResolver(
         }
     }
 
-    private fun FirClassSymbol<*>.getEqualsSymbol(equalsSymbolInAny: FirNamedFunctionSymbol): FirNamedFunctionSymbol {
+    private fun FirClassSymbol<*>.getEqualsSymbol(): FirNamedFunctionSymbol? {
         val scope = unsubstitutedScope(
             analysisSession.useSiteSession,
             analysisSession.getScopeSessionFor(analysisSession.useSiteSession),

analysis/analysis-api-fir/tests-gen/org/jetbrains/kotlin/analysis/api/fir/test/cases/generated/cases/components/callResolver/FirIdeNormalAnalysisSourceModuleResolveCallTestGenerated.java

@@ -664,6 +664,12 @@ public class FirIdeNormalAnalysisSourceModuleResolveCallTestGenerated extends Ab
         runTest("analysis/analysis-api/testData/components/callResolver/resolveCall/memberFunctionCallWithTypeArgument.kt");
     }
 
+    @Test
+    @TestMetadata("noBuiltIns.kt")
+    public void testNoBuiltIns() throws Exception {
+        runTest("analysis/analysis-api/testData/components/callResolver/resolveCall/noBuiltIns.kt");
+    }
+
     @Test
     @TestMetadata("postfixUnaryOperatorOnVar.kt")
     public void testPostfixUnaryOperatorOnVar() throws Exception {

analysis/analysis-api-standalone/tests-gen/org/jetbrains/kotlin/analysis/api/standalone/fir/test/cases/generated/cases/components/callResolver/FirStandaloneNormalAnalysisSourceModuleResolveCallTestGenerated.java

@@ -664,6 +664,12 @@ public class FirStandaloneNormalAnalysisSourceModuleResolveCallTestGenerated ext
         runTest("analysis/analysis-api/testData/components/callResolver/resolveCall/memberFunctionCallWithTypeArgument.kt");
     }
 
+    @Test
+    @TestMetadata("noBuiltIns.kt")
+    public void testNoBuiltIns() throws Exception {
+        runTest("analysis/analysis-api/testData/components/callResolver/resolveCall/noBuiltIns.kt");
+    }
+
     @Test
     @TestMetadata("postfixUnaryOperatorOnVar.kt")
     public void testPostfixUnaryOperatorOnVar() throws Exception {

analysis/analysis-api/testData/components/callResolver/resolveCall/noBuiltIns.descriptors.txt

@@ -0,0 +1,31 @@
+KtSuccessCallInfo:
+  call = KtSimpleFunctionCall:
+    isImplicitInvoke = false
+    partiallyAppliedSymbol = KtPartiallyAppliedSymbol:
+      dispatchReceiver = KtExplicitReceiverValue:
+        expression = 1
+        isSafeNavigation = false
+        type = kotlin.Int
+      extensionReceiver = null
+      signature = KtFunctionLikeSignature:
+        receiverType = null
+        returnType = kotlin.Boolean
+        symbol = kotlin/Int.equals(<dispatch receiver>: kotlin.Int, other: kotlin.Any?): kotlin.Boolean
+        valueParameters = [
+          KtVariableLikeSignature:
+            name = other
+            receiverType = null
+            returnType = kotlin.Any?
+            symbol = other: kotlin.Any?
+            callableIdIfNonLocal = null
+        ]
+        callableIdIfNonLocal = kotlin/Int.equals
+    typeArgumentsMapping = {}
+    argumentMapping = {
+      2 -> (KtVariableLikeSignature:
+        name = other
+        receiverType = null
+        returnType = kotlin.Any?
+        symbol = other: kotlin.Any?
+        callableIdIfNonLocal = null)
+    }

analysis/analysis-api/testData/components/callResolver/resolveCall/noBuiltIns.kt

@@ -0,0 +1,5 @@
+// NO_RUNTIME
+
+fun call() {
+    <expr>1 == 2</expr>
+}

analysis/analysis-api/testData/components/callResolver/resolveCall/noBuiltIns.standalone.fir.txt

@@ -0,0 +1,31 @@
+KtSuccessCallInfo:
+  call = KtSimpleFunctionCall:
+    isImplicitInvoke = false
+    partiallyAppliedSymbol = KtPartiallyAppliedSymbol:
+      dispatchReceiver = KtExplicitReceiverValue:
+        expression = 1
+        isSafeNavigation = false
+        type = kotlin.Int
+      extensionReceiver = null
+      signature = KtFunctionLikeSignature:
+        receiverType = null
+        returnType = kotlin.Boolean
+        symbol = kotlin/Int.equals(<dispatch receiver>: kotlin.Int, other: kotlin.Any?): kotlin.Boolean
+        valueParameters = [
+          KtVariableLikeSignature:
+            name = other
+            receiverType = null
+            returnType = kotlin.Any?
+            symbol = other: kotlin.Any?
+            callableIdIfNonLocal = null
+        ]
+        callableIdIfNonLocal = kotlin/Int.equals
+    typeArgumentsMapping = {}
+    argumentMapping = {
+      2 -> (KtVariableLikeSignature:
+        name = other
+        receiverType = null
+        returnType = kotlin.Any?
+        symbol = other: kotlin.Any?
+        callableIdIfNonLocal = null)
+    }

analysis/analysis-api/testData/components/callResolver/resolveCall/noBuiltIns.txt

@@ -0,0 +1 @@
+null