[LL FIR] LLFirLockProvider: add registry key to disable global phase lock

It is enabled by default

^KT-56551

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/file/builder/LLFirLockProvider.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -42,6 +42,8 @@ internal class LLFirLockProvider(private val checker: LLFirLazyResolveContractCh
         phase: FirResolvePhase,
         action: () -> Unit,
     ) {
+        if (!implicitPhaseLockEnabled) return action()
+
         val lock = when (phase) {
             FirResolvePhase.IMPLICIT_TYPES_BODY_RESOLVE -> implicitTypesLock
             else -> null
@@ -237,4 +239,8 @@ private val globalLockEnabled: Boolean by lazy(LazyThreadSafetyMode.PUBLICATION)
     Registry.`is`("kotlin.parallel.resolve.under.global.lock", false)
 }
 
+private val implicitPhaseLockEnabled: Boolean by lazy(LazyThreadSafetyMode.PUBLICATION) {
+    Registry.`is`("kotlin.implicit.resolve.phase.under.global.lock", true)
+}
+
 private const val DEFAULT_LOCKING_INTERVAL = 50L