FIR LL API: resolve PSI elements to more specific FIR element

Compound access and implicit delegated constructor are mapped to FIR
elements that are way too broad.

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVal.kt

@@ -0,0 +1,6 @@
+interface A {
+    operator fun plusAssign(i: Int)
+}
+fun test(l: A) {
+    <expr>l += 1</expr>
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVal.txt

@@ -0,0 +1,5 @@
+KT element: KtBinaryExpression
+FIR element: FirFunctionCallImpl
+
+FIR element rendered:
+R|<local>/l|.R|/A.plusAssign|(Int(1))

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVal_lhs.kt

@@ -0,0 +1,6 @@
+interface A {
+    operator fun plusAssign(i: Int)
+}
+fun test(l: A) {
+    <expr>l</expr> += 1
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVal_lhs.txt

@@ -0,0 +1,5 @@
+KT element: KtNameReferenceExpression
+FIR element: FirPropertyAccessExpressionImpl
+
+FIR element rendered:
+R|<local>/l|

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVar.kt

@@ -0,0 +1,4 @@
+fun test() {
+    var i = 1
+    <expr>i += 1</expr>
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVar.txt

@@ -0,0 +1,5 @@
+KT element: KtBinaryExpression
+FIR element: FirVariableAssignmentImpl
+
+FIR element rendered:
+R|<local>/i| = R|<local>/i|.R|kotlin/Int.plus|(Int(1))

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVar_lhs.kt

@@ -0,0 +1,4 @@
+fun test() {
+    var i = 1
+    <expr>i</expr> += 1
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignOnVar_lhs.txt

@@ -0,0 +1,5 @@
+KT element: KtNameReferenceExpression
+FIR element: FirResolvedNamedReferenceImpl
+
+FIR element rendered:
+R|<local>/i|

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention.kt

@@ -0,0 +1,8 @@
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+    operator fun set(k: K, v: V)
+}
+
+fun test(m: MyMap<String, Int>) {
+    <expr>m["a"] += 1</expr>
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention.txt

@@ -0,0 +1,5 @@
+KT element: KtBinaryExpression
+FIR element: FirFunctionCallImpl
+
+FIR element rendered:
+R|<local>/<<array>>|.R|SubstitutionOverride</MyMap.set: R|kotlin/Unit|>|(R|<local>/<<index_0>>|, R|<local>/<<array>>|.R|SubstitutionOverride</MyMap.get: R|kotlin/Int|>|(R|<local>/<<index_0>>|).R|kotlin/Int.plus|(Int(1)))

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention_lhs.kt

@@ -0,0 +1,8 @@
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+    operator fun set(k: K, v: V)
+}
+
+fun test(m: MyMap<String, Int>) {
+    <expr>m["a"]</expr> += 1
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayAccessConvention_lhs.txt

@@ -0,0 +1,5 @@
+KT element: KtArrayAccessExpression
+FIR element: FirFunctionCallImpl
+
+FIR element rendered:
+R|<local>/<<array>>|.R|SubstitutionOverride</MyMap.get: R|kotlin/Int|>|(R|<local>/<<index_0>>|)

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayGetConvention.kt

@@ -0,0 +1,11 @@
+interface A {
+    operator fun plusAssign(i: Int)
+}
+
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+}
+
+fun test(m: MyMap<String, A>) {
+    <expr>m["a"] += 1</expr>
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayGetConvention.txt

@@ -0,0 +1,5 @@
+KT element: KtBinaryExpression
+FIR element: FirFunctionCallImpl
+
+FIR element rendered:
+R|<local>/m|.R|SubstitutionOverride</MyMap.get: R|A|>|(String(a)).R|/A.plusAssign|(Int(1))

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayGetConvention_lhs.kt

@@ -0,0 +1,11 @@
+interface A {
+    operator fun plusAssign(i: Int)
+}
+
+interface MyMap<K, V> {
+    operator fun get(k: K): V
+}
+
+fun test(m: MyMap<String, A>) {
+    <expr>m["a"]</expr> += 1
+}

analysis/low-level-api-fir/testdata/getOrBuildFir/calls/compoundAssignWithArrayGetConvention_lhs.txt

@@ -0,0 +1,5 @@
+KT element: KtArrayAccessExpression
+FIR element: FirFunctionCallImpl
+
+FIR element rendered:
+R|<local>/m|.R|SubstitutionOverride</MyMap.get: R|A|>|(String(a))