CL/aarch64: implement the wasm SIMD i32x4.dot_i16x8_s instruction

This patch implements, for aarch64, the following wasm SIMD extensions

  i32x4.dot_i16x8_s instruction
  https://github.com/WebAssembly/simd/pull/127

It also updates dependencies as follows, in order that the new instruction can
be parsed, decoded, etc:

  wat          to  1.0.27
  wast         to  26.0.1
  wasmparser   to  0.65.0
  wasmprinter  to  0.2.12

The changes are straightforward:

* new CLIF instruction `widening_pairwise_dot_product_s`

* translation from wasm into `widening_pairwise_dot_product_s`

* new AArch64 instructions `smull`, `smull2` (part of the `VecRRR` group)

* translation from `widening_pairwise_dot_product_s` to `smull ; smull2 ; addv`

There is no testcase in this commit, because that is a separate repo.  The
implementation has been tested, nevertheless.

cranelift/peepmatic/Cargo.toml

@@ -15,7 +15,7 @@ peepmatic-macro = { version = "0.67.0", path = "crates/macro" }
 peepmatic-runtime = { version = "0.67.0", path = "crates/runtime", features = ["construct"] }
 peepmatic-traits = { version = "0.67.0", path = "crates/traits" }
 serde = { version = "1.0.105", features = ["derive"] }
-wast = "25.0.0"
+wast = "26.0.1"
 z3 = { version = "0.7.1", features = ["static-link-z3"] }
 
 [dev-dependencies]

cranelift/peepmatic/crates/fuzzing/Cargo.toml

@@ -21,4 +21,4 @@ peepmatic-test-operator = { path = "../test-operator" }
 peepmatic-traits = { path = "../traits" }
 rand = { version = "0.7.3", features = ["small_rng"] }
 serde = "1.0.106"
-wast = "25.0.0"
+wast = "26.0.1"

cranelift/peepmatic/crates/runtime/Cargo.toml

@@ -16,7 +16,7 @@ peepmatic-automata = { version = "0.67.0", path = "../automata", features = ["se
 peepmatic-traits = { version = "0.67.0", path = "../traits" }
 serde = { version = "1.0.105", features = ["derive"] }
 thiserror = "1.0.15"
-wast = { version = "25.0.0", optional = true }
+wast = { version = "26.0.1", optional = true }
 
 [dev-dependencies]
 peepmatic-test-operator = { version = "0.67.0", path = "../test-operator" }

cranelift/peepmatic/crates/souper/Cargo.toml

@@ -16,4 +16,4 @@ log = "0.4.8"
 [dev-dependencies]
 peepmatic = { path = "../..", version = "0.67.0" }
 peepmatic-test-operator = { version = "0.67.0", path = "../test-operator" }
-wast = "25.0.0"
+wast = "26.0.1"

cranelift/peepmatic/crates/test-operator/Cargo.toml

@@ -9,4 +9,4 @@ edition = "2018"
 [dependencies]
 peepmatic-traits = { version = "0.67.0", path = "../traits" }
 serde = { version = "1.0.105", features = ["derive"] }
-wast = "25.0.0"
+wast = "26.0.1"