simplicity and simplicity-sys: bump major versions

In another PR I add a regression test against the released 0.3.0 version
of rust-simplicity. It breaks some tooling to have two 0.3.0s in play at
once -- one from this repo and one from crates.io.

Take this opportunity to bump versions to 0.4.0 to avoid this conflict.

Once we get this into a reasonable bug-free state we should do another
release.

Author: apoelstra

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "simplicity-lang"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Andrew Poelstra <[email protected]>"]
 license = "CC0-1.0"
 homepage = "https://github.com/BlockstreamResearch/rust-simplicity/"

simplicity-sys/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "simplicity-sys"
-version = "0.3.0"
+version = "0.4.0"
 license = "CC0-1.0"
 homepage = "https://github.com/BlockstreamResearch/rust-simplicity/"
 repository = "https://github.com/BlockstreamResearch/rust-simplicity/"

simplicity-sys/depend/simplicity/simplicity_alloc.h

@@ -6,17 +6,17 @@
 /* Declare Rust functions so the compiler can handle them.
  * The linker will include the functions from Rust.
  */
-extern void* rust_0_3_malloc(size_t size);
-extern void* rust_0_3_calloc(size_t num, size_t size);
-extern void rust_0_3_free(void* ptr);
+extern void* rust_0_4_malloc(size_t size);
+extern void* rust_0_4_calloc(size_t num, size_t size);
+extern void rust_0_4_free(void* ptr);
 
-/* Allocate with rust_0_3_malloc. */
-#define simplicity_malloc rust_0_3_malloc
+/* Allocate with rust_0_4_malloc. */
+#define simplicity_malloc rust_0_4_malloc
 
-/* Allocate+zero initialize with rust_0_3_calloc. */
-#define simplicity_calloc rust_0_3_calloc
+/* Allocate+zero initialize with rust_0_4_calloc. */
+#define simplicity_calloc rust_0_4_calloc
 
-/* Deallocate with rust_0_3_free. */
-#define simplicity_free rust_0_3_free
+/* Deallocate with rust_0_4_free. */
+#define simplicity_free rust_0_4_free
 
 #endif /* SIMPLICITY_SIMPLICITY_ALLOC_H */