[Wasm] renamings + keeping old version of stringLiteral (KT-79357)

Author: alex28sh

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/WasmSymbols.kt

@@ -225,7 +225,7 @@ class WasmSymbols(
     val unboxIntrinsic: IrSimpleFunctionSymbol = getInternalFunction("unboxIntrinsic")
 
     val stringGetLiteralUTF16 = getFunction("stringLiteralUTF16", StandardNames.BUILT_INS_PACKAGE_FQ_NAME)
-    val stringGetLiteralLatin = getFunction("stringLiteralLatin", StandardNames.BUILT_INS_PACKAGE_FQ_NAME)
+    val stringGetLiteralRawByte = getFunction("stringLiteralRawByte", StandardNames.BUILT_INS_PACKAGE_FQ_NAME)
     val stringGetPoolSize = getInternalFunction("stringGetPoolSize")
 
     val testFun = maybeGetFunction("test", kotlinTestPackageFqName)

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/dce/WasmUsefulDeclarationProcessor.kt

@@ -34,7 +34,7 @@ internal class WasmUsefulDeclarationProcessor(
             is IrConstKind.Null -> expression.type.enqueueType(data, "expression type")
             is IrConstKind.String -> {
                 if ((expression.value as String).all { it.code in 0..255 }) {
-                    context.wasmSymbols.stringGetLiteralLatin.owner
+                    context.wasmSymbols.stringGetLiteralRawByte.owner
                         .enqueue(data, "String literal intrinsic getter stringGetLiteral")
                 } else {
                     context.wasmSymbols.stringGetLiteralUTF16.owner

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/ir2wasm/DeclarationGenerator.kt

@@ -626,7 +626,7 @@ fun generateConstExpression(
             body.commentGroupStart { "const string: \"$stringValue\"" }
             body.buildConstI32Symbol(literalPoolId, location)
             if (isLatin) {
-                body.buildCall(context.referenceFunction(backendContext.wasmSymbols.stringGetLiteralLatin), location)
+                body.buildCall(context.referenceFunction(backendContext.wasmSymbols.stringGetLiteralRawByte), location)
             } else {
                 body.buildCall(context.referenceFunction(backendContext.wasmSymbols.stringGetLiteralUTF16), location)
             }

libraries/stdlib/wasm/builtins/kotlin/String.kt

@@ -173,7 +173,7 @@ internal fun stringLiteralUTF16(poolId: Int): String {
     return newString
 }
 
-internal fun stringLiteralLatin(poolId: Int): String {
+internal fun stringLiteralRawByte(poolId: Int): String {
     val cached = stringPool[poolId]
     if (cached !== null) {
         return cached
@@ -190,6 +190,19 @@ internal fun stringLiteralLatin(poolId: Int): String {
         chars.set(i, chr)
     }
 
+    val newString = String(null, length, chars)
+    stringPool[poolId] = newString
+    return newString
+}
+
+// TODO: remove after bootstrap
+internal fun stringLiteral(poolId: Int, start: Int, length: Int): String {
+    val cached = stringPool[poolId]
+    if (cached !== null) {
+        return cached
+    }
+
+    val chars = array_new_data0<WasmCharArray>(start, length)
     val newString = String(null, length, chars)
     stringPool[poolId] = newString
     return newString

libraries/stdlib/wasm/internal/kotlin/wasm/internal/TypeInfo.kt

@@ -60,7 +60,7 @@ internal fun getQualifiedName(rtti: kotlin.wasm.internal.reftypes.structref): St
 
 internal fun getPackageName(rtti: kotlin.wasm.internal.reftypes.structref): String =
     if ((wasmGetRttiIntField(5, rtti) and TYPE_INFO_FLAG_FITS_ONE_BIT_QUALIFIER) != 0)
-        stringLiteralLatin(
+        stringLiteralRawByte(
             poolId = wasmGetRttiIntField(2, rtti),
         )
     else
@@ -70,7 +70,7 @@ internal fun getPackageName(rtti: kotlin.wasm.internal.reftypes.structref): Stri
 
 internal fun getSimpleName(rtti: kotlin.wasm.internal.reftypes.structref): String =
     if ((wasmGetRttiIntField(5, rtti) and TYPE_INFO_FLAG_FITS_ONE_BIT_SIMPLE_NAME) != 0)
-        stringLiteralLatin(
+        stringLiteralRawByte(
             poolId = wasmGetRttiIntField(3, rtti),
         )
     else