[Tests] Reproduce #KT-75150

compiler/fir/analysis-tests/testData/resolve/contextParameters/declarationAndUsages/genericContextAmbiguity.fir.txt

@@ -0,0 +1,24 @@
+FILE: genericContextAmbiguity.kt
+    public abstract interface Describer<in T> : R|kotlin/Any| {
+        public abstract fun describe(t: R|T|): R|kotlin/String|
+
+    }
+    context(<unused var>: R|Describer<T>|)
+    public final fun <T> log(message: R|T|): R|kotlin/Unit| {
+    }
+    public final class A : R|kotlin/Any| {
+        public constructor(): R|A| {
+            super<R|kotlin/Any|>()
+        }
+
+    }
+    public final class B : R|kotlin/Any| {
+        public constructor(): R|B| {
+            super<R|kotlin/Any|>()
+        }
+
+    }
+    context(<unused var>: R|Describer<A>|, <unused var>: R|Describer<B>|)
+    public final fun bar(): R|kotlin/Unit| {
+        R|/log<Inapplicable(INAPPLICABLE): /log>#|<R|A|>(R|/A.A|())
+    }

compiler/fir/analysis-tests/testData/resolve/contextParameters/declarationAndUsages/genericContextAmbiguity.kt

@@ -0,0 +1,18 @@
+// RUN_PIPELINE_TILL: FRONTEND
+// LANGUAGE: +ContextParameters
+// ISSUE: KT-75150
+
+interface Describer<in T> {
+    fun describe(t: T): String
+}
+
+context(_: Describer<T>)
+fun <T> log(message: T) {}
+
+class A
+class B
+
+context(_: Describer<A>, _: Describer<B>)
+fun bar() {
+    <!AMBIGUOUS_CONTEXT_ARGUMENT!>log<!>(A())
+}