PY-85706 Don't insert "t" prefix on completion in string arguments of unresolved functions

GitOrigin-RevId: c55b66d83f7518af43fb7dac8eb5a44560a10f85

python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyFStringLikeCompletionContributor.java

@@ -158,7 +158,11 @@ public final class PyFStringLikeCompletionContributor extends CompletionContribu
         !(argumentList.getParent() instanceof PyCallExpression call)) {
       return false;
     }
-    return ContainerUtil.all(call.multiMapArguments(PyResolveContext.defaultContext(typeEvalContext)), mapping -> {
+    List<PyCallExpression.PyArgumentsMapping> mappings = call.multiMapArguments(PyResolveContext.defaultContext(typeEvalContext));
+    if (mappings.isEmpty()) {
+      return false;
+    }
+    return ContainerUtil.all(mappings, mapping -> {
       PyCallableParameter param = mapping.getMappedParameters().get(callArgument);
       if (param == null) return false;
       PyType paramType = param.getType(typeEvalContext);

python/testData/completion/fStringLikeCompletionDoesNotAddTPrefixInsideUnresolvedFunctionCalls.after.py

@@ -0,0 +1 @@
+unresolved(f"foo{divmod(<caret>)}")

python/testData/completion/fStringLikeCompletionDoesNotAddTPrefixInsideUnresolvedFunctionCalls.py

@@ -0,0 +1 @@
+unresolved("foo{divmo<caret>")

python/testSrc/com/jetbrains/python/Py3CompletionTest.java

@@ -567,6 +567,11 @@ public class Py3CompletionTest extends PyTestCase {
   public void testFStringLikeCompletionAddsTPrefixWhereTemplateStringIsExpectedAsAssignedValueWithUnpacking() {
     doTest();
   }
+
+  // PY-85706
+  public void testFStringLikeCompletionDoesNotAddTPrefixInsideUnresolvedFunctionCalls() {
+    doTest();
+  }
     
   // PY-46056
   public void testImportCompletionHintForSameDirectoryModuleInOrdinaryPackage() {