[embedded] #ifdef the Dictionary.init(uniqueKeysWithValues:) changes only to Embedded Swift

Author: kubamracek

stdlib/public/core/Dictionary.swift

@@ -486,13 +486,20 @@ public struct Dictionary<Key: Hashable, Value> {
     // error instead of calling fatalError() directly because we want the
     // message to include the duplicate key, and the closure only has access to
     // the conflicting values.
+    #if !$Embedded
+    try! native.merge(
+      keysAndValues,
+      isUnique: true,
+      uniquingKeysWith: { _, _ in throw _MergeError.keyCollision })
+    #else
     native.merge(
       keysAndValues,
       isUnique: true,
       uniquingKeysWith: { _, _ throws(_MergeError) in
         throw _MergeError.keyCollision
       }
     )
+    #endif
     self.init(_native: native)
   }
 

stdlib/public/core/NativeDictionary.swift

@@ -791,6 +791,7 @@ extension _NativeDictionary { // High-level operations
     }
   }
 
+  #if $Embedded
   @inlinable
   internal mutating func merge<S: Sequence>(
     _ keysAndValues: __owned S,
@@ -817,6 +818,7 @@ extension _NativeDictionary { // High-level operations
       }
     }
   }
+  #endif
 
   @inlinable
   @inline(__always)