More fun with -Xmigration.

to BufferLike (++ and similar now create a new collection.)

Removed MapLikeBase.  Annotated all the methods in mutable.{ Map, Set }
which mutated in-place in 2.7 to note that they create new
collections, and implemented same.

At this point the only +/- like method which mutates in place which I am
aware of is BufferLike.+ (see source comment for my observations.)

Also tweaked some collections return types as necessitated by these
changes, such as mutable.Set.clone() now returning "This" rather than
mutable.Set[A].

References #3089, closes #3179. Review by odersky.

1 files changed, 12 insertions, 12 deletions

diff --git a/test/files/run/colltest1.check b/test/files/run/colltest1.check
index 7dcf4bd1a6..a5f4ada7a3 100644
--- a/test/files/run/colltest1.check
+++ b/test/files/run/colltest1.check
@@ -95,15 +95,15 @@ ArrayBuffer(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
 true
 false
 true
-Map(E -> E, X -> X, N -> N, T -> T, Y -> Y, J -> J, U -> U, F -> F, A -> A, M -> M, I -> I, G -> G, V -> V, Q -> Q, L -> L, B -> B, P -> P, C -> C, H -> H, W -> W, K -> K, R -> R, O -> O, D -> D, Z -> Z, S -> S)
-Map(E -> E, X -> X, N -> N, T -> T, Y -> Y, J -> J, U -> U, F -> F, A -> A, M -> M, I -> I, G -> G, V -> V, Q -> Q, L -> L, B -> B, P -> P, C -> C, H -> H, W -> W, K -> K, R -> R, O -> O, D -> D, Z -> Z, S -> S)
-Map(O -> O, W -> W, H -> H, P -> P, V -> V, G -> G, I -> I, A -> A, F -> F, U -> U, N -> N, X -> X, Z -> Z, S -> S, D -> D, K -> K, R -> R, C -> C, B -> B, L -> L, Q -> Q, M -> M, J -> J, Y -> Y, T -> T, E -> E)
-Map(O -> O, W -> W, H -> H, P -> P, V -> V, G -> G, I -> I, A -> A, F -> F, U -> U, N -> N, X -> X, Z -> Z, S -> S, D -> D, K -> K, R -> R, C -> C, B -> B, L -> L, Q -> Q, M -> M, J -> J, Y -> Y, T -> T, E -> E)
-Map(E -> E, X -> X, N -> N, T -> T, Y -> Y, J -> J, U -> U, F -> F, A -> A, M -> M, I -> I, G -> G, V -> V, Q -> Q, L -> L, B -> B, P -> P, C -> C, H -> H, W -> W, K -> K, R -> R, O -> O, D -> D, Z -> Z, S -> S)
-Map(E -> E, X -> X, N -> N, T -> T, Y -> Y, J -> J, U -> U, F -> F, A -> A, M -> M, I -> I, G -> G, V -> V, Q -> Q, L -> L, B -> B, P -> P, C -> C, H -> H, W -> W, K -> K, R -> R, O -> O, D -> D, Z -> Z, S -> S)
-Map(A -> A, B -> B, C -> C, D -> D, E -> E, F -> F, G -> G, H -> H, I -> I, J -> J, K -> K, L -> L, M -> M, N -> N, O -> O, P -> P, Q -> Q, R -> R, S -> S, T -> T, U -> U, V -> V, W -> W, X -> X, Y -> Y, Z -> Z)
-Map(A -> A, B -> B, C -> C, D -> D, E -> E, F -> F, G -> G, H -> H, I -> I, J -> J, K -> K, L -> L, M -> M, N -> N, O -> O, P -> P, Q -> Q, R -> R, S -> S, T -> T, U -> U, V -> V, W -> W, X -> X, Y -> Y, Z -> Z)
-Map(O -> O, W -> W, H -> H, P -> P, V -> V, G -> G, I -> I, A -> A, F -> F, U -> U, N -> N, X -> X, Z -> Z, S -> S, D -> D, K -> K, R -> R, C -> C, B -> B, L -> L, Q -> Q, M -> M, J -> J, Y -> Y, T -> T, E -> E)
-Map(O -> O, W -> W, H -> H, P -> P, V -> V, G -> G, I -> I, A -> A, F -> F, U -> U, N -> N, X -> X, Z -> Z, S -> S, D -> D, K -> K, R -> R, C -> C, B -> B, L -> L, Q -> Q, M -> M, J -> J, Y -> Y, T -> T, E -> E)
-Map(E -> E, X -> X, N -> N, T -> T, Y -> Y, J -> J, U -> U, F -> F, A -> A, M -> M, I -> I, G -> G, V -> V, Q -> Q, L -> L, B -> B, P -> P, C -> C, H -> H, W -> W, K -> K, R -> R, O -> O, D -> D, Z -> Z, S -> S)
-Map(E -> E, X -> X, N -> N, T -> T, Y -> Y, J -> J, U -> U, F -> F, A -> A, M -> M, I -> I, G -> G, V -> V, Q -> Q, L -> L, B -> B, P -> P, C -> C, H -> H, W -> W, K -> K, R -> R, O -> O, D -> D, Z -> Z, S -> S)
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))
+List((A,A), (B,B), (C,C), (D,D), (E,E), (F,F), (G,G), (H,H), (I,I), (J,J), (K,K), (L,L), (M,M), (N,N), (O,O), (P,P), (Q,Q), (R,R), (S,S), (T,T), (U,U), (V,V), (W,W), (X,X), (Y,Y), (Z,Z))