transpile: tests: snapshots: update for const unsafe changes

this should probably be merged with the individual commits changing behavior, but this history is already messy and should be cleaned up before hitting master

Author: fw-immunant

c2rust-transpile/tests/snapshots/[email protected]

@@ -37,4 +37,4 @@ pub unsafe extern "C" fn c11_atomics(mut x: std::ffi::c_int) -> std::ffi::c_int
     fresh1.1;
     return x;
 }
-pub const __ATOMIC_SEQ_CST: std::ffi::c_int = unsafe { 5 as std::ffi::c_int };
+pub const __ATOMIC_SEQ_CST: std::ffi::c_int = 5 as std::ffi::c_int;

c2rust-transpile/tests/snapshots/[email protected]

@@ -30,35 +30,31 @@ pub struct fn_ptrs {
     pub fn2: Option<unsafe extern "C" fn(std::ffi::c_int) -> std::ffi::c_int>,
 }
 pub type zstd_platform_dependent_type = std::ffi::c_long;
-pub const UINTPTR_MAX: std::ffi::c_ulong = unsafe { 18446744073709551615 as std::ffi::c_ulong };
-pub const true_0: std::ffi::c_int = unsafe { 1 as std::ffi::c_int };
-pub const LITERAL_INT: std::ffi::c_int = unsafe { 0xffff as std::ffi::c_int };
-pub const LITERAL_BOOL: std::ffi::c_int = unsafe { true_0 };
-pub const LITERAL_FLOAT: std::ffi::c_double = unsafe { 3.14f64 };
-pub const LITERAL_CHAR: std::ffi::c_int = unsafe { 'x' as i32 };
-pub const LITERAL_STRUCT: S = unsafe {
-    {
-        let mut init = S {
-            i: 5 as std::ffi::c_int,
-        };
-        init
-    }
+pub const UINTPTR_MAX: std::ffi::c_ulong = 18446744073709551615 as std::ffi::c_ulong;
+pub const true_0: std::ffi::c_int = 1 as std::ffi::c_int;
+pub const LITERAL_INT: std::ffi::c_int = 0xffff as std::ffi::c_int;
+pub const LITERAL_BOOL: std::ffi::c_int = true_0;
+pub const LITERAL_FLOAT: std::ffi::c_double = 3.14f64;
+pub const LITERAL_CHAR: std::ffi::c_int = 'x' as i32;
+pub const LITERAL_STRUCT: S = {
+    let mut init = S {
+        i: 5 as std::ffi::c_int,
+    };
+    init
 };
-pub const NESTED_INT: std::ffi::c_int = unsafe { LITERAL_INT };
-pub const NESTED_BOOL: std::ffi::c_int = unsafe { 1 as std::ffi::c_int };
-pub const NESTED_FLOAT: std::ffi::c_double = unsafe { LITERAL_FLOAT };
-pub const NESTED_CHAR: std::ffi::c_int = unsafe { 'x' as i32 };
-pub const NESTED_STRUCT: S = unsafe {
-    {
-        let mut init = S {
-            i: 5 as std::ffi::c_int,
-        };
-        init
-    }
+pub const NESTED_INT: std::ffi::c_int = LITERAL_INT;
+pub const NESTED_BOOL: std::ffi::c_int = 1 as std::ffi::c_int;
+pub const NESTED_FLOAT: std::ffi::c_double = LITERAL_FLOAT;
+pub const NESTED_CHAR: std::ffi::c_int = 'x' as i32;
+pub const NESTED_STRUCT: S = {
+    let mut init = S {
+        i: 5 as std::ffi::c_int,
+    };
+    init
 };
-pub const PARENS: std::ffi::c_int = unsafe { NESTED_INT * (LITERAL_CHAR + true_0) };
-pub const WIDENING_CAST: std::ffi::c_int = unsafe { LITERAL_INT };
-pub const CONVERSION_CAST: std::ffi::c_int = unsafe { LITERAL_INT };
+pub const PARENS: std::ffi::c_int = NESTED_INT * (LITERAL_CHAR + true_0);
+pub const WIDENING_CAST: std::ffi::c_int = LITERAL_INT;
+pub const CONVERSION_CAST: std::ffi::c_int = LITERAL_INT;
 #[no_mangle]
 pub unsafe extern "C" fn local_muts() {
     let mut literal_int: std::ffi::c_int = LITERAL_INT;
@@ -324,11 +320,11 @@ pub static mut global_const_member: std::ffi::c_int = 0;
 pub unsafe extern "C" fn test_fn_macro(mut x: std::ffi::c_int) -> std::ffi::c_int {
     return x * x;
 }
-pub const TEST_CONST1: std::ffi::c_int = unsafe { 1 as std::ffi::c_int };
-pub const TEST_NESTED: std::ffi::c_int = unsafe { 2 as std::ffi::c_int };
-pub const TEST_CONST2: std::ffi::c_int = unsafe { TEST_NESTED };
+pub const TEST_CONST1: std::ffi::c_int = 1 as std::ffi::c_int;
+pub const TEST_NESTED: std::ffi::c_int = 2 as std::ffi::c_int;
+pub const TEST_CONST2: std::ffi::c_int = TEST_NESTED;
 pub const TEST_PARENS: std::ffi::c_int =
-    unsafe { (TEST_CONST2 + 1 as std::ffi::c_int) * 3 as std::ffi::c_int };
+    (TEST_CONST2 + 1 as std::ffi::c_int) * 3 as std::ffi::c_int;
 #[no_mangle]
 pub unsafe extern "C" fn reference_define() -> std::ffi::c_int {
     let mut x: std::ffi::c_int = TEST_CONST1;
@@ -349,8 +345,8 @@ pub static mut fns: fn_ptrs = {
 };
 #[no_mangle]
 pub static mut p: *const fn_ptrs = unsafe { &fns as *const fn_ptrs };
-pub const ZSTD_WINDOWLOG_MAX_32: std::ffi::c_int = unsafe { 30 as std::ffi::c_int };
-pub const ZSTD_WINDOWLOG_MAX_64: std::ffi::c_int = unsafe { 31 as std::ffi::c_int };
+pub const ZSTD_WINDOWLOG_MAX_32: std::ffi::c_int = 30 as std::ffi::c_int;
+pub const ZSTD_WINDOWLOG_MAX_64: std::ffi::c_int = 31 as std::ffi::c_int;
 #[no_mangle]
 pub unsafe extern "C" fn test_zstd() -> U64 {
     return (if ::core::mem::size_of::<zstd_platform_dependent_type>() as std::ffi::c_ulong
@@ -386,7 +382,7 @@ pub unsafe extern "C" fn test_switch(mut x: std::ffi::c_int) -> std::ffi::c_int
     }
     return 0 as std::ffi::c_int;
 }
-pub const silk_int16_MIN: std::ffi::c_int = unsafe { 0x8000 as std::ffi::c_int };
+pub const silk_int16_MIN: std::ffi::c_int = 0x8000 as std::ffi::c_int;
 #[no_mangle]
 pub unsafe extern "C" fn test_silk_int16_MIN() -> std::ffi::c_int {
     let mut _null: std::ffi::c_char =